The answer to this question would be <span>A.) It provides energy and fights infections.
The nutrient is a substance that needed to maintain life. This included carbohydrate which gives most energy, an amino acid that makes protein and used for making cells, or vitamin for reaction coenzyme.
The option in this question is not clear and I think all of them can be said as a benefit of nutrient. The option A is about carbohydrate, option B and C about protein/amino acid and option C about vitamin.
But the most vital need for an organism is energy, so I think A will be the best option if you need to choose only one.</span>
In the large intestine, or colon, salts and water are absorbed from the liquefied food, leaving a semi-solid residue called feces (stool). ... When the stool enters the rectum, stretching causes the muscles of the lower rectum and anus to relax so that the stool can be eliminated by defecation.
